package com.ysu.yybk;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

/**
 * @author ：lhw
 * @date ：Created in 2019/12/1 20:33
 */
public class main {
    public static void main(String[] args) {
        int N = 2 << 25;
        int sum = 0;

        Long start = System.currentTimeMillis();

        for(int i = 0; i< N;i++){
            sum += i;
        }

        Long end = System.currentTimeMillis();

        System.out.println(end - start);

    }
}
